Speed indicator and recorder.



l c. A. ANDERSON.

SPEED INDICATOR AND RECORDER.

APPLICATION FILED DEC. Il, I9I3.

Patented Jan. 11, 1916.

2 SHEETS-SHEET I.

y l1/wanton C.A. ANDERSON.

SPEED INDICATOR AND RECORDER.

APPLICATION FILED Dc.1|, |913.

11,167,671. i Patented Jan. 11, 1916.

2 SHEETS-SHEETL @VH1/Doom I A; 1 l j se JMW fa. 5%! M4 1 UNITED STATESI PATENT OFFICE.

CARL ARTHUR ANDERSON, 0F CHICAGO, ILLINOIS.

SPEED INDICATOR AND RECORDER.

Specication of Letters latent.

Patented Jan. 11, 1916.

Application led December 11, 1913. Serial No. 806,027.

. To all whom it may concern.' y

My invention relates to improvements in v mechanism for indicating and recording the speed of vehicles, per hour, and one of the objects of the invention is to simplify and construct a mechanism of this character in such compact form that it will require as little space as possible.

A further object of the invention is to provide a driving cylinder, over which a marking web or strip is trained, and by means of which it is advanced, from an unwinding to a winding roller, and incorporating in the driving-cylinder certain of the mechanism by means of which the device of my invention is rendered operable.

A further object of the invention is to provide improved .means for actuating a marker arm whereby movement thereof will cause a graphic line to appear upon the web or band in such relation with respect to mileage and time indications as to indicate the mileage and the speed attained during travel. v

Further objects of the invention will be more fully described in connection with the accompanying drawings and will be more particularly pointed out and ascertained in and by the appended claims.

In the drawings: Figure 1 is a vertical sectional view on line 1--1 of Fig. 3 showing the winding and unwindingrolls in elevation. Fig. 2 is a view similar to Fig. 1 with all of the internal mechanism shown in elevation, but looking at the device in a direction opposite to that in whichFig. 1 is viewed. Fig. 3 is a sectional view on line 3--3 of Fig. 2. Fig. 4 is a fragmentary view in elevation of a band orweb on which mileage and time indications, together with a graphic line are shown.. Fig. 5 is a view partly in section and partly in elevation of the left hand end of the driving shaft illustrating connections therewith. Fig. 6 is a view in side elevation illustrative of one form of drive connection with one of the wheels of the vehicle. Fig. 7 is a plan view thereof. Fig. 8 is a detail sectional view through the driving shaftto show the shifting lever mounted thereon.

Like characters of reference designate similar parts throughout the different figures of the drawings.

As illustrated, 1 designates a casing in which the device of my invention is disposed. A driving shaft is indicated at 2, and may be journaled in the sidewalls of the casing 1 in any suitable manner. A

lieXible connection 3 leads from the drive shaft 2 to a gear shaft 4 on which a gear 5 is mounted. Gear 5 meshes with a gear 6 which may be on the axle 7 of a vehicle. A frame 8 serves to support the attachment for transmitting drive from the aXle to the indicator, as shown more particularly in Figs. 6 and 7.

Rotatable about the drive shaft 2 is a driving cylinder 9 which is hollow in form and which is provided on its periphery with webadvancing studs 10. A gear wheel 11 is loose on shaft 2 and is connected with the driving cylinder 9 to transmit drive thereto by means such as a clock work 12, briey indicated in Figs. l and 3. A -Wheel 13 meshes with wheel 11 to transmit drive. A web or band 14 is trained over the driving cylinder 9 and is provided with suitable openings 15 for engagement with the studs 10, so that when the cylinder 9 is rotated the web or band will be advanced. The indicating web is initially woundupon an unwinding roller 16, which is suitably journaled at 17, in the casing 1, and I provide a winding roller 18, journaled in the casing 1 as at 19, to take up the web unwound from the roller 16. In order totake up slack between the winding roller 18 and the driving cylinder 9 I preferably provide the roller 18 with a pulley 20, over which and a pulley 21, iXed to wheel 11, is trained a spring-transmission element 22.

One end of the shaft 2 is journaled in a bearing 23, secured to the casing 1, and the cylinder 9 is loosely mounted on the drive shaft 2 between gear wheel 11 and a fixed governor hub 24, which may be secured to the shaft 2 by a pin 25. Near the opposite end of the cylinder 9 on shaft 2 I slidably mount a governor' hub 26 and provide the same with a pin QT which extends through a slotted portion 2S of the shaft 2. The slidable and ixed hubs 2st and 2G are connected by resilient governor spring arms '20, each of which is provided with a centrally disposed weight 30. The ends of the spring arms Q9 may be secured to the hubs by clips 31 which are pivotally mounted to the hub as at 3Q.

It will be seen thatexpansion of the weighted central portions of the arms 29 will result from rotation imparted to the governor from drive transmitted to the shaft :2 when the vehicle is in motion. Such distention of the arms will serve to draw the slidable hub Q6, inwardly from the left hand end wall of the cylinder 9, in accordance with the expansion of arms Q9. I will now describe the marker arm operating mechanism which is controlled by this sliding movement of the hub 26, under the action of the governor.

A shifting rod is movable longitudinally and axially in a bore 3l, of the shaft :2, and is actuated by the hub 26 through the medium of the pin 2T which is passed through the shifting rod as will be seen more clearly by reference to Fig. 5. Rod is provided with shoulders 35 which are engaged by a fork 36 in a shifting lever 3T. Shifting lever 3T is pivotallyhung at 38 to swing from a bracket 39 projecting from the casing 1. The lower end of the lever 3T is pivotally connected at 40 with a lilik rod l1. the opposite end of the latter being connected at 42 with a marker operating arm 13. The marker operating arm 13 is pivotally mounted atll upon an arm 15 which extends inwardly froln, and is mounted upon the casing l.

I have shown operating arm 43 provided with a branch 16 connected by a spring 4J with an arm structure 18, mounted on casing 1. for adjustment and Calibrating purposes, primarily.

A marker arm is indicated at i9 and is pivoted at 50,to a lever 51 which latter is pivoted at 5:? to a support 53, mounted on the casing 1. The free end of the marker arm i9 is provided with any suitable form of a marking device 5l which will serve to form a graphic line 55 across the face of the indicating web 14.

Time or speed indications 56 are disposed Alongitudinally of the web 14 and mileageindications 5T are disposed transversely of the web 14.

From the foregoing description it will be readily seen that the cylinder 9 is driven 43, at 5S, with the marker arm 49, and the mounting of the marker arm as shown more clearly in Fig. 2, will serve to move the marker 51 in a substantially straight line to and fro across the web 11.

It will be seen that all of the governor mechanism is concealed within the driving cylinder 9 and thattransmission is edected to the marker arm shifting mechanism wholly by axial movement of the slidable hub 26 on the driving shaft itself. rIhus I do not have to provide a driving shaft in spaced relation with respect to the driving drum or cylinder.

It is believed that the device of my invention will be clearly understood from the foregoing description and while I have herein shown and described one specific form of my invention. I do not wish to be limited thereto except for such limitations as the claims may import.

I claim:

1. In a speed indicator and recorder, an inclosing casing, a driving cylinder, an indicating web trained thereabout. winding and unwinding rollers for the extremities of said web, a governor mounted within said cylinder. an elongated bracket means carried by said casing, a level'. and an operating arm pivoted atopposite extremities of said bracket. link means connecting said lever and said arm the latter arching partially about said cylinder, and a marking arm for operation upon said web as controlled by said first arm and oppositely arching about said cylinder.

2. In a speed indicator and recorder, an inclosing casing, a shaft journaled in the ends of said casing, a cylinder loosely mounted upon said shaft, independent driv ing means for saidshaft and said cylinder, a governor mounted upon said shaft and within said cylinder, bracket means extending through said casing, a lever pivoted at one extremity of said bracket for operation by said governor, an operating arm also pivoted to said bracket and arching partially about the upper portion of said cylinder on one side thereof, a web trained over said cylinder for rotation therewith, and a marking arm adapted to operate upon said web under control of said first arm and oppositely arching about the upper portion of said cylinder upon the other side thereof.

3. In a speed indicator and recorder, an inclosing casing, a shaft journaled in the ends of said casing, a driving cylinder loosely mounted upon said shaft, a web trained over said cylinder. winding and unwinding rollers for the extremities of said web. a governor mounted for rotation with said shaft and within said cylinder. means slidable through a partial bore of said shaft for rotation therewith and longitudinally actuated by said governor, bracket means extending through said casing, a lever pivoted connected to virst said arm to oppositely arch at one extremity of said bracket and loosely over the other side of said cylinder and to embracing said slidable means, an operating Contact with said web under control of said arm also pivoted to said bracket, link means operating arm.

5 maintaining said lever and said arm in sub- In testimony whereof I aiix my signature 15 stantially parallel'relation, said arm archin presence of two Witnesses. ing about one side of the upper portion of CARL ARTHUR ANDERSON. said cylinder, means connected to said arm Witnessesz' for Calibrating purposes, and a marking arm LUDWiG LovAAs,

l0 pivoted above said cylinder and vpivotally C. BAGKSTROM. 

